
		.nav{
			padding-top: 20px;
			height: 40px;
			width: 	100%;
			border-bottom: 4px solid rgb(204,204,204);
			position: fixed;
			z-index: 100;
			background-color: white;
		}
		.nav ul{
			width: 	900px;
		}
		.nav-div1{
			width: 200px;
			float: left;
			margin-left: 80px;
		}
		.nav-div1 img{
			width: 220px;
		}
		.nav-div2{
			width: 400px;
			float: right;
			padding-top: 5px;
			margin-right: 480px;
		}
		.nav-div2 a{
			transition: color 0.5s;
		}
		.nav-div2 a:hover{
			color: rgb(115,201,229);
		}
		.nav li{
			list-style-type: none;
			float: left;	
		}
		.nav a{
			padding: 0 10px;
			text-decoration: none;
			color: black;
		}
		.bd{
			color: rgb(204,204,204);
			margin: 0 10px;
		}